Carbon nanotubes used by 17th century Damascus

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Carbon nanotubes were found in the microstructure of a 17th century Damascus sabre, suggesting that medieval Muslim sword-smiths utilized advanced materials science long before modern discoveries. Researchers from Dresden's Technical University, led by Peter Paufler, identified these nanotubes, which may have encapsulated iron-carbide nanowires. This finding provides insights into the mechanical strength and sharpness of Damascus blades, known for their exceptional quality. The discovery challenges the timeline of material science advancements, indicating that sophisticated techniques were employed centuries ago. This research highlights the historical significance of Damascus swords in the context of material innovation.
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http://www.rsc.org/chemistryworld/News/2006/November/15110602.asp

Carbon nanotubes are no longer the proud boast of 21st century materials scientists. It appears their discovery was unwittingly pre-empted by mediaeval Muslim sword-smiths whose tough Damascus blades taught the Crusaders the true meaning of cold steel when they fought over the Holy Land.

Peter Paufler and colleagues at Dresden's Technical University discovered carbon nanotubes in the microstructure of a 17th century Damascus sabre. Intriguingly, the nanotubes could have encapsulated iron-carbide nanowires that might give clues to the mechanical strength and sharpness of these swords.
 
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Thanks for sharing.
 
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